package jdbc;

import java.sql.*;
import java.util.Scanner;

import static java.lang.Class.forName;

public class JdbcDemo1 {
    public static void main(String[] args) throws SQLException, ClassNotFoundException {
        /*
        1.加载数据库驱动
        2.创建数据库的连接对象
        3.创建sql语句的执行对象
        4.执行sql语句
        5.断开连接，释放资源
         */
        //1.加载数据库驱动
        Class.forName("com.mysql.cj.jdbc.Driver");
        //2.创建数据库连接对象
        Connection connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "root"
        );
        //sql语句执行对象
        Statement statement = connection.createStatement();
        //执行sql语句
        Scanner scanner = new Scanner(System.in);
        System.out.println("用户名字");
        String username = scanner.nextLine();
        System.out.println("用户密码");
        String password = scanner.nextLine();
        System.out.println("昵称");
        String nickname = scanner.nextLine();
        System.out.println("年龄");
        String  age = scanner.nextLine();
        //字符串拼接方式sql,"+变量名+" 嵌入到数据库
        String sql = "insert into userinfo(username,password,nickname,age)" +
                "values('"+username+"','"+password+"','"+nickname+"',"+age+")";
        int i = statement.executeUpdate(sql);
        //5.断开数据库连接
        connection.close();

    }
}
